Hydraulic pipe.



J. T.\LANGFORD, DECD.

B. M. PRIEST. ADMINISTRATRIX.

HYDRAULIC PIPE.

APPLICATION FILED FEB.9,1905.

Patented July 13, 1909.

2 SHEETS-SHEET 1.

9 jizz/fafa?? J'. T. LANGFORD, DECD. E. M. PRIEST, ADMINISTRATRIX.

HYDRAULIC PIPE.

APPLICATION FILED 1113.9, 1905.

`Paterltd July 13, 1909.

z sHPETs-sHEBT 2.

JOHN T. LANGFORD, OF NEWTON, MASSACHUSETTS;

ELLEN M. PRIEST ADMINISTRATRIX OF SAID JOHN T. LANGFORD, DECEASED.

HYDRAULIC PIPE.

spcmcation of Letmratent.

Patented Juiy 13, 1909.

Application ined February-o, 1994i.; serial No. 244,995.

To au whom 'it may concern:

Be it known thatI, JoHNiT. LANGFoRn,`acitizen of thc United States, residing at- Newton, in the county of Middlesex and.

State of Massachusetts, have invented new and useful Improvements Pipes, of which the followingis a `specification. F

This invention relates to certain improvements in cement or composite pipes, and particularly those whichicomprise a reinforcing met-al casing, lined and coated with cement, and has for its object'the rodliction` of a lie proof against composite pipe, which shall oxidation or electrolytic action. I "accomplish this object by the-means shown in the accompanying drawing, and `by methods hereafter' described. l In the specification and claims, the word cement is intended to include an adhesive substance, or material of any suitable nature for lining or coating' metal frames ormetal pipes together to form composite pipes.

In the accompanying drawing r-Figure l is` a cross sectional view showing the internal` shell or pipe provided with wings and the external surface thereof covered by, andthe wings incased, with aiilling of cement or analogous material. Fig. 2 is asectional end elevation, showing a. cement filling within the internal perforate shellor pipe, and an outer mcasing or covering between which `and the internal shellor pipe a cement filling is inter posed. Fig. 3 is a cross sectional view showingthe inner shell or `pipe having internal wings incased in a cement lining, and also external wings and a filling,` of cement cover-` ing the external surface of the inner'shell or pipe and the external wings. Fig. 4 shows a cross sectional view illustrating the inner shell or pipe with internal and external wings, and an outer shell connected to the external wings and a protective covering surrounding the outer` shell, ythe interspace between the .inner and outershells being solidly filled with cement,A and the interior of .the inner shell lined with and having its wings solidly incased in cement or analogous material. Fig. 5 isa' cross sectional view showing the' inner shell or pipe with eX-v terual wings, an outer shell surroundingthe external wings and connected therewith, and havmg an outer covering secured thereto,

metal bands located at the ends thereof, the

ner shell lined with in Hydraulic` interspace between the inner and outer shells being solidly filled with cement, andthe incelnent or analogous material. Fig. 6 is a cross sectional view `showing the inner shell or pipe having internal andexternal wings, a perforated shell, a cement coating extending from the inner 'shell or pipe through and around `theperforated shell, and an outer waterproof covering-surrounding the outer shell and having metal "bands at the ends thereof for protecting and attaching purposes. Fig. 7 is a longitudinal section of a portion of a pipe, showingthe inner and .outer shells both of an imperforate natu-re and the inner :shell shorter than the outer shell or coveing'and `the inner cement linin f and cement filling united at the terminals thereof. Fig. 8 is a view similar `to Fig. 7, showing the` outer shell alone perforate and the cement fillinor between the inner and outer shells united to the protective covering through the openings` in the outer shell, and also united at the ends,"the inner and outer shells being made the saine length wliile the outer covering is made longer, end of the outer covering thus uniting the cement and incasing all metal in cement at the terminals. Fig. Qis a cross sectional view ofa pipe embodying the features of the invention wherein the ribs are carried alone by the outer shell and project inwardly radially with lrespect to the inner shell.

Similar characters of reference are elnployed to indicate corrt-xsponding parts in the several views.

The composite pipe embodying the features of the invention has been illustrated progressively to illustrate from the simplified form shown by Fig. l by additional stepsor features, acquisitions to the connmsl ite pipe within the domain of the` invention.

Referring to Fig. l, the sin'iplitied-.form of the pipe, 4the numeral l designates an inner solid shell or pipe 1, having external perforate wings 2,- the external surfaces of the shell and wings being coated with cement 3, the thickness of the latter being regulated in accordance `with the use and dimensions of the inner shell. The cement in this form of the device, between the wings 2, becomes connected through the apertures or perforations 4, in the .wings to more positively key or attach the segmental portions of the cethe cement extending to the.

nient covering between the Wings and more eli'ectively enhance the value of the st-ructure of the composite pipe from a standpoint of homogeneity.

Referring to Fig. 2, the 'improved composite pipe is shown as having a perforate inner shell 1, similar to the shell shown by Fig. l, and external iinperforate wings 5, so arranged as to provide recesses between them for the reception of a cement filling 3, also similar to that shown by Fig. l; and the main ditterence in this instance With respect to the pipe shown by Fig. 1, aside from the iniperforatc nature of the Wings 5, is that the interior of the shell 1 is provided with a cementy lining t5. The inner shell in this instance. has a series of perforations 7 therein, which permit the inner lining G of the shell 1, and the filling 3 between the inner and outer shells to become connected and strengthen the entire pipe structure.

ln Fig. 2E, the inner shell or pipe 1 has an iimer cement lining G, similar to that shown by Fig. 2, and internal wings 8 ineased in said lining in addition to the eX- terual wings 2, and cement filling 3. The wings and inner shell in this instance may be perfor-ate oi' imperforate to provide for uniting the lining and filling and both of the latter with 'respect to different parts of each other through the wings, as indicated by the construction heretofore set forth.

ln Fig. et the same construction is shown as in Fig. 3, with the exception of an outer shell t) connected to flanges 10 of the Wings projecting out 'ardly from the inner shell and a protective covering surrounding this outer shell, like reference numerals being used in thisl instance to designate parts corresponding to those shown by Fig. 3. The forni of device shown by Fig. 5 has an inner shell with outer wings solely, an outer shell, similarly numbered, and an outer covering 11, of a non-conductive or other suitable material, and end securing bands 12, Which operate to support the cement terminals and to hold the coverinn' in place and also serve as means for establishing a leaded, or other joint between the contiguous ends of the pipe sections.

Fig. shows the inner shell or pipe With internal and external Wings, as heretofore described and coirespondingly numbered, an outer perforate shell 13, a cement coating or filling 14, extending from the inner shell or pipe through andaround the perforate shell, and an outer shell or Waterproof covering 15, surrounding the outer cement and having metal bands 1G similar to those shown by Fig. 5, and for a like purpose.

Fig. 7 illustrates more clearly the means for uniting the cement lining of the inner' shell and the intermediate cement filling between the inner and outer shells or outside covering by making the inner shell shorter than the outer shell or covering thus uniting the bodies and showing a composite pipe with monolithic terminals.

Fig. is specially intended to illustrate the connection of the cement lining and fillings with the outside protective covering as shown at the ends of the pipe, and by means of perforations 17, in the outer shell.

Fig. 5) shows ribs or wings 18, carried by the outer shell alone and projecting into and ineased by the intermediate cement lline, and in Figs. 7, 8, and 9 the parts having similar structures to those heretofore set forth, bear like reference numerals.

From the various modifications hereinbefore noted .it will be understood that it is intended to make the inner and outer shells either perforate or iinperforate or to make perfoi'ate or imperforate the several ribs, wings, or resisting means and also to have the same either attached to or forming integral parts of the inner and outer shells and of such configuration as Will render them best adapted for the purpose. In

some instances, as indicated by the accom panyiiig drawings, the ribs or Wings of the outer shell will intersect the Wings or ribs of the inner shell, and the outer shell may or may not be directly attached to the Wings of the inner shell, or the inner shell attached to the Wings of the outer shell. From this disclosure and the accompanying drawings it Will be noted that the salient features of the invention are: First, the provision of the reinforcing Wings or strengthening, resisting and engaging means, to render the inner pipe and thc structure frame rigid, so that the composite pipe can be made of extra. length and stand transportation Without injury to the cement. Second, the connection of the cement linings and coverings in, through and at the ends of the pipe, to render them more positive in their positions With respect to the parts With which they engage, as Well as increase their durability and effectiveness and to prevent electrolysis. Third, the protective covering adapted to do service to which the pipe is to be applied. l

Where found necessary in attaching a Water-proof or non-conducting material of different nature to the inner structural frame or to the outer surface of the pipe, corresponding adhesive material may be employed, and in some instances it will be understood that the outside protective coverl' ing may be of a non-conductive Water-proof cement character, particularly Where it is desired to unite the same with the inter# mediate filling by aperturing the outer shell orwith the cement surrounding the structural iframe.

In the simplified form of the invention, as shown in Figs. l, 2 and 3, the outer protective covering, when used, may be applied directly to the cement covering the structural traine, and secured thereto bysuitable means.

The connection ot' the cement lining and filling at the ends of the inner pipe or shells or iuclosed reinforce to render them as heretofore set forth, is present in all the forms of the device shown, as `before indicated, and particularly the extension ot' the cement over the ends` as shown by two of thetigures and intended when necessary to be' used in all of `the structures illustrated, providing monolithic endsand shielding the inclosed pipe,

shellsand reinforcing structures with advantage in wear and durability of the coniposite pipe. The terminals ofthe structural `trame/also have the additional advantage of being electrically nou-conductive to practically adapt the pipe for use in containing and inclosing electrical conductors, fronr which there is always more or less electrical leakage, and, furthermore, to 'prevent the parts ot the pipe, when the latter is used for other purposes, from being the `least aii'ected by electrical conductors adjacent. tothe pipe. Having` thus fully described myiinvention, what I claim as new and desire to secure by Letters Patent, is: j v i l. The herein `descrilmd composite pipe,

having` an inner shell provided with outer strengthening wings,` an 4outer shell surrounding said wings and` attached thereto and also having wings j irojecting inwardly therefrom to the inner shell, a body of cement formed as a liningl on thel interior of the inner shell, and a body of cementfilling in the interspace between the inner and outer shells and solidly filling the said space and forming a coating upon the shells and incasing the `wings projecting from the shells.

2L The herein described composite pipe, having an inner shell provided with surface strengthening means, an outer shell surrounding said means and connected thereto, a protective covering surrounding and connected to the outer shell, metal bands around the ends of the covering, and a cement filling interposed between the shells and engaging,

the said means. y

3. The herein described composite pipe, having a shell provided with surface strengthening wings, an outer shell .surrounding and connected to the wings, a protective covering surrounding and connected to the outer shell, metal bands around the ends of the covering, a cementilining on the interior of the inner shell, and a filling of cement in the interspace between thc inner and outer shells and engaging the said wings.

et. The herein described composite pipe, having a shell provided with lstrengthening wings and also inner wings, an outer shell surrouiulingr and connected to the surface strengthening wings, a protective covering surrouiuling aud connected to the having surface i outer shell. metal bauds around the ends of ,the covering and shells, an interior protective lining in the inner shell, and a lilling in the interspace beta-een the `inner and outer shells solidly introduced and fully taking up such space and incasing the outer wings.

5. rlhe herein described composite pipe, an inner shell provided with surface` strengthening wings projecting therefrom, a perforate shell surrounding the said wings and connected t.heret'o,fa protective cover- 4 ing surrounding the perforate shell,`the latter also having wings extending inwardly to the innervshell, and the said inner shell `provided with inwardly extending wings,a lining of cement on the inner shel1,and a body of cement disposed against the outer shell "and engagingl the perforate shell, the protective covering, and-wings. i

G. The herein described composite pipe having an interior shell sup )o1-ted by a resisting means, an outer shell coneentrically surrounding the interior shell and coperatingwith said resisting means, a cement filling interposed between the inner and outer shells, an inner cement lining for the interior shell,the cement lining and filling being projected beyond the ends of the shells and rendered homogeneous to providemonol lithic terminals, and a protective covering surrounding the outer shell. i

7. The herein described composite pipe having an interior shell with openings therein, an inelosing covering means cooperating with said shell, resisting means being inter-` posed between the shell and covering means, f a filling of cement interposed between the inner shell and covering means, and alining of cement .in the interior shell which connects with the filling through the openings in said 105 shell, and also rendered homogeneous at ,the oppositeends of the shell and projected Ibe-` yond saidends to provide monolithic terminals. v

8. The herein described composite' pipe 110 having a solid pipe reinforced by strengthening, resisting and engaging means, and a body of cement disposed internally and externally a lining and coating upon said pipe and means, engaging and enveloping the same and forming non-conductive monolithic terminals. j

9.' The herein described composite pi e having a. solid pipe reinforced by strengt ening, resisting and engaging means, a body of cement disposed internally and externally as a lining and coating upon said pipeand means, and engaging and envelopin(lr the saine and forming non-conductive monolithic terminals, and a protective covering. i

` 10. The herein described composite pipe having a pipe reinforced by strengthening, resisting-and engaging means, a body of cement disposed internally and externally as a lining and coating upon said pipe and 130 means and engaging and enveloping the same and forming non-conductive monolithic terminals, a protective covering, and bands for joint making and other purposes.

ll. The herein described composite pipe having a solid pipe reillforced by strengthening, resisting and engaging means, an outer shell concentrically surrounding and -eo operating therewith, and a body of cement disposed internally and externally as a lining and coating upon said pipe, shell and means and engaging and enveloping the saine and 4forming non-conductive monolithic terminals.

12. The herein described composite pipe having a pipe reinforced by strengthening, resisting and engaging means, an outer Shel concentrically surrounding and cooperating therewith, a body of cement disposed internally and externally as a liningand coating upon said pipe, shell and means, and engaging and enveloping the same and forming non-conductive monolithic terminals, and a protective covering.

13. The herein described composite pipe having a solid pipe reinforced by strengthening, resisting and engaging means, an outer shell concentrically surrounding and coperating therewith, a body of cement disposed internally and externally as a lining and coaling upon said pipe, shell and means, and engaging' and enveloping the same and forming non-conductive monolithic terminals7 a protective covering, and bandsv for joint making and other purposes.

lfl. The herein described composite pipe consisting of a structural frame comprising an inner shell strengthened and supported b v resisting and engaging means, an outer shell cont-cntrically surrounding and coperaling with the inner shell, a body of cement disposed as a lining upon the inner shell, a filling between the inner and outer shells, aud a coating upon the outer shell, the lining, lling antlcoating being connected at the ends of the pipe to insure the solidity and tightness of the cement and preserve the structural frame within the pipe.

l5. The herein described composite pipe consisting oi a structural frame compr-isinor an inner shell strengthened and supported by resisting and engaging means, an outer perforated shell concentrically surrounding and cooperating with the inner shell, a body of cement disposed as a lining upon the inner shell, a filling between the inner and outer shell, and a coating upon the outer shell, the lining, filling and coating being connected at the ends of the pipe and through perforations insaid shell to insure the solidity and tightness oit' the cement and preserve the structural frame Within the pipe, and a protective covering surrounding the pipe.

1G. The herein described composite pipe,

consist-ing of a structural frame, comprising an inner shell strengthened and supported by resisting and engagingineans, an outer perforated shell concentrically surrounding and cooperating with the inner shell, a body of cement disposed as a lining upon the inner shell, a illing between the inner and outer shells, and ak coating upon the outer shell, the lining, filling and coating being connected at the ends ot the pipe and through pcrforations in said shell to` insure the solidity and tightness of the cement, and preserve the structural frame Within the pipe, a protective covering surrounding the pipe, and bands for joint making and other purposes. y

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

JOHN T. LANGFORD. lV i tnesses Anrnnns Simronn, 'lnoMAs M. VINSoN.- 

